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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_STORE_SOURCE_OBJECT_HXX
#define INCLUDED_STORE_SOURCE_OBJECT_HXX
#include "sal/types.h"
#include "rtl/ref.hxx"
#include "osl/interlck.h"
#include "salhelper/simplereferenceobject.hxx"
namespace store
{
/*========================================================================
*
* IStoreHandle interface.
*
*======================================================================*/
class IStoreHandle : public virtual salhelper::SimpleReferenceObject
{
public:
/** Replaces dynamic_cast type checking.
*/
virtual bool isKindOf (sal_uInt32 nTypeId) = 0;
protected:
virtual ~IStoreHandle() {}
};
/** Template helper function as dynamic_cast replacement.
*/
template<class store_handle_type>
store_handle_type * SAL_CALL query (
IStoreHandle * pHandle, store_handle_type *);
/*========================================================================
*
* OStoreObject interface.
*
*======================================================================*/
class OStoreObject : public store::IStoreHandle
{
/** Template function specialization as dynamic_cast replacement.
*/
friend OStoreObject*
SAL_CALL query<> (IStoreHandle *pHandle, OStoreObject*);
public:
/** Construction.
*/
OStoreObject() {}
/** IStoreHandle.
*/
virtual bool isKindOf (sal_uInt32 nTypeId) SAL_OVERRIDE;
protected:
/** Destruction.
*/
virtual ~OStoreObject() {}
private:
/** The IStoreHandle TypeId.
*/
static const sal_uInt32 m_nTypeId;
/** Representation.
*/
oslInterlockedCount m_nRefCount;
/** Not implemented.
*/
OStoreObject (const OStoreObject&);
OStoreObject& operator= (const OStoreObject&);
};
/** Template function specialization as dynamic_cast replacement.
*/
template<> inline OStoreObject*
SAL_CALL query (IStoreHandle *pHandle, OStoreObject*)
{
if (pHandle && pHandle->isKindOf (OStoreObject::m_nTypeId))
{
// Handle is kind of OStoreObject.
return static_cast<OStoreObject*>(pHandle);
}
return 0;
}
/*========================================================================
*
* The End.
*
*======================================================================*/
} // namespace store
#endif // INCLUDED_STORE_SOURCE_OBJECT_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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